add override_data_type_check

Author: sharinetmc

parsons/google/google_bigquery.py

@@ -456,7 +456,7 @@ def copy_from_gcs(
                 Other arguments to pass to the underlying load_table_from_uri
                 call on the BigQuery client.
         """
-        self._validate_copy_inputs(if_exists=if_exists, data_type=data_type)
+        self._validate_copy_inputs(if_exists=if_exists, data_type=data_type, override_data_type_check=True)
 
         job_config = self._process_job_config(
             job_config=job_config,
@@ -1559,12 +1559,14 @@ def _fetch_query_results(self, cursor) -> Table:
         ptable = petl.frompickle(temp_filename)
         return Table(ptable)
 
-    def _validate_copy_inputs(self, if_exists: str):
+    def _validate_copy_inputs(self, if_exists: str, data_type: str, override_data_type_check: bool = False):
         if if_exists not in ["fail", "truncate", "append", "drop"]:
             raise ValueError(
                 f"Unexpected value for if_exists: {if_exists}, must be one of "
                 '"append", "drop", "truncate", or "fail"'
             )
+        if data_type not in ["csv", "json"] and not override_data_type_check:
+            raise ValueError(f"Only supports csv or json files [data_type = {data_type}]")
 
     def _load_table_from_uri(
         self, source_uris, destination, job_config, max_timeout, **load_kwargs